PRIME RIB WITH AU JUS

Prime Rib with Au Jus image

This has come out perfect every time I have made it. You need to get your hands greasy on this one, but it's well worth it! It's succulent and savory - just what a prime rib should be! Pan juices from the roast can be added to the Au Jus at the last minute if need be.

Provided by Laura Reichartz

Categories Main Dish Recipes Roast Recipes

Time 2h45m

Yield 20

Number Of Ingredients 12

Ingredients

1 (10 pound) boneless prime rib roast
1 cup butter, softened
2 ½ cups coarse kosher salt
1 tablespoon chopped fresh tarragon
1 teaspoon ground allspice
1 teaspoon freshly ground black pepper
1 tablespoon olive oil
1 tablespoon butter
2 large onions, chopped
2 pounds baby bella mushrooms, chopped
4 cups water
2 tablespoons beef broth base (such as Orrington Farms®)

Steps:

Preheat oven to 500 degrees F (260 degrees C). Place a rack on a shallow roasting pan.
Coat entire roast with 1 cup softened butter. Set roast fat-side up on the rack.
Mix salt, tarragon, allspice, and black pepper together in a bowl. Rub salt mixture all over roast.
Bake roast in the preheated oven until outside is crisp and browned, about 50 minutes. Reduce oven temperature to 350 degrees F (175 degrees C). Continue baking roast until the internal temperature reaches 150 degrees F (65 degrees C), 35 to 40 minutes.
Remove roast from oven. Spoon pan juices into a small bowl; set aside. Cover roast with aluminum foil and let rest before slicing, 15 to 20 minutes.
Heat olive oil and 1 tablespoon butter in a large saucepan over medium heat. Add onions and cook until golden brown, about 5 minutes. Add mushrooms and cook until tender, about 10 minutes. Stir in water, beef broth base, and reserved pan juices. Simmer until flavors combine, 30 to 45 minutes. Serve au jus alongside roast.

Nutrition Facts : Calories 410.1 calories, Carbohydrate 3.1 g, Cholesterol 107.3 mg, Fat 32 g, Fiber 0.8 g, Protein 27.1 g, SaturatedFat 14.9 g, Sodium 11827.7 mg, Sugar 1.4 g